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My thoughts on docker (lemmy.ml)

submitted 5 days ago* (last edited 5 days ago) by foremanguy92_@lemmy.ml to c/selfhosted@lemmy.world

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Hello! 😀
I want to share my thoughts on docker and maybe discuss about it!
Since some months I started my homelab and as any good "homelabing guy" I absolutely loved using docker. Simple to deploy and everything. Sadly these days my mind is changing... I recently switch to lxc containers to make easier backup and the xperience is pretty great, the only downside is that not every software is available natively outside of docker 🙃
But I switch to have more control too as docker can be difficult to set up some stuff that the devs don't really planned to.
So here's my thoughts and slowly I'm going to leave docker for more old-school way of hosting services. Don't get me wrong docker is awesome in some use cases, the main are that is really portable and simple to deploy no hundreds dependencies, etc. And by this I think I really found how docker could be useful, not for every single homelabing setup, and it's not my case.

Maybe I'm doing something wrong but I let you talk about it in the comments, thx.

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[–] SpazOut@lemmy.world 3 points 3 days ago (1 children)

For me the power of docker is its inherent immutability. I want to be able to move a service around without having to manual tinker, install packages and change permissions etc. It’s repeatable and reliable. However, to get to the point of understanding enough about it to do this reliably can be a huge investment of time. As a daily user of docker (and k8s) I would use it everyday over a VM. I’ve lost count of the number of VMs I’ve setup following installation guidelines, and missed a single step - so machines that should be identical aren’t. I do however understand the frustration with it when you first start, but IMO stick with it as the benefits are huge.

[–] foremanguy92_@lemmy.ml 1 points 1 day ago (1 children)

Yeah docker is great for this and it's really a pleasure to deploy apps so quickly but the problems comes later, if you want to really customize the service to you, you can't instead of doing your own image...

[–] SpazOut@lemmy.world 2 points 1 day ago

In most cases you can get away with over mounting configuration files within the container. In extreme cases you can build your own image - but the steps for that are just the changes you would have applied manually on a VM. At least that image is repeatable and you can bring it up somewhere else without having to manually apply all those changes in a panic.